13) 7 5/7 : 3 3/5

\(7\frac{5}{7}=\frac{54}{7}\), \(3\frac{3}{5}=\frac{18}{5}\).

\(\frac{54}{7}:\frac{18}{5}=\frac{54}{7}\cdot\frac{5}{18}=\frac{15}{7}=2\frac{1}{7}\).

Ответ: 2 1/7